14x24x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack LUXX Bar Full-range pH tester

Full-range pH tester

For Soil: Add 5-15ml per gallon of water to your nutrient solution

Increased application timing window

For use on ornamental trees

Low noise output

14x24x 1/2 Half Inch Ring Panel MERV 12 Furnace Air Filters 6 Pack LUXX Bar Full-range pH testerNordic Pure Half Inch Ring Panel AC Furnace Air Filters consist of an internal frame bonded between flat layers of two different types of electrostatically charged HVAC furnace filter media. The first layer is a high capacity, polyester filter material which acts as a pre filter, capturing large airborne particles. The second, more efficient, layer is a MERV rated smooth poly blend filter material. The electrostatic charge works as a magnet to draw in